The US will get to see a solar eclipse on August 21.
While the entire country will get to witness at least a partial eclipse, the lucky people who live along or travel to the 70-mile-wide streak of totality will see the moon completely block out the sun's light as it crosses between the Earth and the sun.
For those who will be able to watch the total solar eclipse in person, there's plenty to see up in the sky. But there are also some unexpected phenomena that happen on the ground during the eclipse.
Here are some of the things to keep an eye out for.
SEE ALSO: Here are the cities in the US where you'll get to see a total solar eclipse
DON'T MISS: Here's what the solar eclipse will look like from different cities around the US
About 15 minutes before the eclipse has reached totality, the environment around you will start to change. Colors will fade or take on a blue-ish hue, according to Mark Littman and Fred Espenek, authors of "Totality: The Great American Eclipses of 2017 and 2024."
Source: "Totality: The Great American Eclipses of 2017 and 2024"
The shadows you cast will start to get sharper than they usually are.
The temperature might feel cooler as the sunlight gets less intense.
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